Academy
-
Ib nti yog dab tsi, DN yog dab tsi, thiab Φ yog dab tsi?
Dab tsi yog ib nti: Ib nti (“) yog ib qho kev ntsuas feem ntau hauv Asmeskas, xws li rau cov kav dej, lub valve, flanges, lub luj tshib, twj tso kua mis, tees, thiab lwm yam. Piv txwv li, qhov loj ntawm 10″. Lo lus inch (abbreviated li "hauv.") hauv Dutch Ameslikas txhais tau tias ntiv tes xoo, thiab ib nti yog le ...Nyeem ntxiv
- Jinan steel pab pawg kev lag luam chaw ua si, Wuan, Handan, Suav